A showerhead

Abstract

The utility model provides a kind of nozzle, comprising: ink tank, shell and lock catch assembly;The top of ink tank is equipped with slot;Shell is equipped with mounting port;Cabin is equipped with mounting groove, cabin is slidably installed in shell, cabin has the elastic restoring force sliding towards mounting port, the protruding part of ink tank can be embedded into mounting groove from mounting port;Lock catch assembly includes pressing rod, and the buckle compatible with slot, buckle is swingably installed in shell, buckle has the elastic restoring force towards slot, when pushing ink tank, mounting groove guides ink tank to slide towards PCB spring needle, the metal PAD of ink tank is contacted with PCB spring needle and buckle and slot form clamping, pressing rod is movably arranged in shell, the pressing end of pressing rod is located outside shell, when pressing pressing rod, pressing rod drives buckle to swing and separate clamping slot, mounting groove drives ink tank to recover to mounting port.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing equipment technology, and specifically to a printhead. Background Technology

[0002] There are various inkjet printheads on the market, and different types of printheads often use different ink cartridges. For example, the utility model patent with publication number CN222628941U, entitled "An Integrated Ink Cartridge for an Inkjet Printer," discloses an integrated ink cartridge. Because this type of printhead requires a certain installation space, the printing part of the cartridge protrudes, and the overall cartridge is L-shaped. This special shape means that the cartridge needs to be tilted at a certain angle to fully embed the protruding part 11' of the printhead position into the mounting groove 31' within the printhead housing 2'. At this time, the metal PAD on the cartridge will rub against the spring pin on the PCB, which can easily scratch or even break the PAD layer on the cartridge, rendering the cartridge unusable. In more serious cases, careless operation can cause the cartridge to bend the spring pin on the PCB, damaging the equipment. Therefore, this method of installing the cartridge is inconvenient. Moreover, this installation method lacks feedback on whether the cartridge is properly installed, relying entirely on mechanical positioning and human feel. Therefore, it is necessary to improve the printhead. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide a printhead whose ink cartridge is easy to install and remove, reducing damage to the metal PAD and PCB spring pins during cartridge installation.

[0004] To achieve the above objectives, this utility model proposes a nozzle, which includes:

[0005] Ink cartridge, the top of which has a slot;

[0006] A housing, wherein the housing is provided with an installation port communicating with the interior of the housing;

[0007] The cockpit is provided with a mounting groove. The cockpit is slidably installed in the housing. The cockpit is slidably disposed between the mounting port and the PCB spring pin. The cockpit has an elastic restoring force that slides toward the mounting port. The protrusion of the ink cartridge can be inserted into the mounting groove from the mounting port.

[0008] A locking assembly includes a pressing rod and a latch adapted to the slot. The latch is oscillatingly mounted within the housing and has an elastic restoring force toward the slot. When the ink cartridge is pushed, the cabin guides the ink cartridge to slide toward the PCB spring pin. The metal PAD of the ink cartridge contacts the PCB spring pin, and the latch engages with the slot. The pressing rod is movably inserted through the housing, with its pressing end located outside the housing. When the pressing rod is pressed, it causes the latch to oscillate and disengage from the slot, and the cabin returns the ink cartridge to the mounting port.

[0009] According to the present invention, a printhead features a sliding chamber within its housing. The ink cartridge is fixed to the chamber from the housing's mounting opening. Pushing the ink cartridge guides it horizontally toward the PCB spring pin. Simultaneously, a locking assembly engages the ink cartridge, keeping its metal pad in contact with the PCB spring pin. To remove the ink cartridge, simply press to unlock, disengaging the locking mechanism. The cartridge then returns to its mounting position under elastic restoring force. This printhead allows for convenient ink cartridge installation and removal, reducing damage to the metal pad and PCB spring pin during cartridge installation.

[0010] In addition, the nozzle proposed according to the above embodiments of this utility model may also have the following additional technical features:

[0011] Optionally, the two side walls of the mounting groove are slidably connected to the two side walls of the housing.

[0012] Optionally, both sides of the housing are provided with a first sliding groove, and both sides of the mounting groove are provided with a first slider that is adapted to the first sliding groove.

[0013] Furthermore, the bottom wall of the housing is provided with a second sliding groove, the bottom of the cabin is slidably engaged with the second sliding groove, and the second sliding groove is provided with a printing port communicating with the outside of the housing.

[0014] Optionally, a dust cover is hinged to the housing, the dust cover being used to open or close the mounting port.

[0015] Optionally, the side wall of the mounting groove is provided with a first elastic abutment member that elastically abuts against the side of the protrusion, and the rear wall of the mounting groove is provided with a second elastic abutment member that elastically abuts against the rear end of the protrusion.

[0016] Optionally, the front wall of the mounting groove is provided with a first clearance notch to allow the metal PAD of the ink cartridge to contact the PCB spring pin.

[0017] Optionally, a third sliding groove is provided on the side wall of the housing, and a second slider adapted to the third sliding groove is provided on the side wall of the mounting groove. An elastic element is provided in the sliding groove so that the slide has an elastic restoring force that slides toward the mounting opening.

[0018] Furthermore, the housing includes a mounting block, which is detachably disposed on the inner sidewall of the housing, and the mounting block is provided with the third sliding groove.

[0019] Optionally, the housing is further provided with a guide member that extends obliquely from the upper side of the mounting opening toward the mounting groove to guide and embed the protrusion of the ink cartridge into the mounting groove. Attached Figure Description

[0020] Figure 1 A schematic diagram of installing an integrated ink cartridge on an existing printhead;

[0021] Figure 2 This is a schematic diagram of the internal structure of the nozzle according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the nozzle according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the ink cartridge after installation according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the ink cartridge after ejection according to the present invention;

[0025] Figure 6 This is a structural schematic diagram of the cockpit according to the present invention;

[0026] Figure 7 for Figure 6 A structural diagram from another perspective;

[0027] Figure 8 This is a schematic diagram of the structure of the nozzle according to the present invention;

[0028] Figure 9 for Figure 8 A structural diagram from another perspective;

[0029] Explanation of reference numerals in the attached figures:

[0030] Ink cartridge 1, protrusion 11, card slot 12, metal PAD 13, housing 2, first slide 21, second slide 22, printout 23, dust cover 24, mounting block 25, third slide 251, elastic element 252, guide element 26, PCB spring pin 27, cockpit 3, mounting slot 31, first slider 32, first elastic abutment element 33, second elastic abutment element 34, first clearance notch 35, second clearance notch 36, second slider 37, support element 38, locking assembly 4, pressing rod 41, buckle 42, communication interface 5. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] The following is for reference. Figures 1-9 The implementation of the nozzle proposed in the embodiments of this utility model will be described in detail.

[0035] The nozzle according to an embodiment of the present invention includes:

[0036] Ink cartridge 1, with a slot 12 on the top;

[0037] Housing 2, housing 2 is provided with an installation port that communicates with the interior of housing 2;

[0038] The cockpit 3 is provided with a mounting groove 31. The cockpit 3 is slidably installed in the housing 2. The cockpit 3 is slidably disposed between the mounting port and the PCB spring pin 27. The cockpit 3 has an elastic restoring force that slides toward the mounting port. The protrusion 11 of the ink cartridge 1 can be inserted into the mounting groove 31 from the mounting port.

[0039] The locking assembly 4 includes a pressing rod 41 and a latch 42 adapted to the slot 12. The latch 42 is swayably installed in the housing 2 and has an elastic restoring force toward the slot 12. When the ink cartridge 1 is pushed, the cabin 3 guides the ink cartridge 1 to slide toward the PCB spring pin 27. The metal PAD 13 of the ink cartridge 1 contacts the PCB spring pin 27, and the latch 42 and the slot 12 form a snap-fit. The pressing rod 41 is movably inserted through the housing 2, and the pressing end of the pressing rod 41 is located outside the housing 2. When the pressing rod 41 is pressed, the pressing rod 41 drives the latch 42 to swing and disengage from the slot 12. The cabin 3 drives the ink cartridge 1 back to the mounting port.

[0040] In other words, the housing 2 is hollow and has a mounting hole communicating with the interior of the housing 2. The ink cartridge 1 can be inserted through the mounting hole and then the protrusion 11 of the ink cartridge 1 is embedded into the mounting groove 31 of the housing 3. The bottom and outer periphery of the protrusion 11 of the ink cartridge 1 are abutted and restricted by the mounting groove 31 to form a fixed position. The housing 3 serves to fix the ink cartridge 1 on the one hand and guide the path on the other hand, pushing the rear end of the ink cartridge 1 to move the ink cartridge 1 and the housing 3 together toward the PCB spring pin 27, so that the metal PAD 13 of the ink cartridge 1 makes front contact with the PCB spring pin 27, and at the same time the latch 4 2. Engage the cartridge 1 in the slot 12. Due to the combined restoring force of the clip 42 and the cockpit 3, the clip 42 remains engaged with the slot 12, thus keeping the metal PAD 13 of the cartridge 1 in contact with the PCB spring pin 27. During the disassembly of the cartridge 1, the clip 42 swings and disengages from the slot 12 by pressing the top pressing rod 41 of the housing 2. Under the restoring force, the cockpit 3 moves the cartridge 1 synchronously toward the mounting port, thus moving the cartridge 1 to the mounting port. The cartridge 1 can then be easily removed from the mounting port.

[0041] The cockpit 3 can slide with the housing 2 through the cooperation of a sliding groove and a slider. Alternatively, the entire cockpit 3 can act as a slider, with a sliding groove on the housing 2 for the cockpit 3 to slide. The buckle 42 can be elastically restoring with the housing 2 through a torsion spring. The pressing rod 41 can be hinged or abutted with the buckle 42 to give the pressing rod 41 a restoring force. Alternatively, a spring can be fitted on the pressing rod 41 to give the pressing rod 41 a restoring force. Whether the ink cartridge 1 is installed in place can be identified by the protrusion height of the pressing end of the pressing rod 41 or by the marking on the pressing end.

[0042] Thus, by providing a sliding chamber 3 within the housing 2, the ink cartridge 1 is fixed to the chamber 3 from the mounting port of the housing 2. Pushing the ink cartridge 1 causes the chamber 3 to guide it horizontally toward the PCB spring pin 27. Simultaneously, the latch 42 of the locking assembly 4 engages the ink cartridge 1, keeping the metal PAD 13 of the ink cartridge 1 in contact with the PCB spring pin 27. When removing the ink cartridge 1, simply press to unlock, disengaging the latch 42 from the ink cartridge 1. The ink cartridge 1 then returns to its mounting port under the action of elastic restoring force. This printhead design allows for easy installation and removal of the ink cartridge 1, reducing damage to the metal PAD 13 and PCB spring pin 27 during installation.

[0043] Optionally, the two side walls of the mounting groove 31 are slidably connected to the two side walls of the housing 2. Understandably, by sliding the two side walls of the mounting groove 31 to the two side walls of the housing 2, the cabin 3 can slide between the mounting port and the PCB spring pin 27. The sliding engagement on the side walls of the two does not occupy the bottom space, allowing the print head to be closer to the housing 2, which is beneficial to improving the printing effect.

[0044] Optionally, both side walls of the housing 2 are provided with first sliding grooves 21, and both side walls of the mounting groove 31 are provided with first sliders 32 that are adapted to the first sliding grooves 21. Understandably, the presence of first sliding grooves 21 on both side walls of the housing 2 and first sliders 32 on both side walls of the mounting groove 31 helps improve the smoothness of the sliding of the cockpit 3, thereby improving the accuracy of the contact between the metal PAD 13 and the PCB spring pin 27. The sliders can be cylindrical to reduce friction with the sliding grooves.

[0045] Optionally, the bottom wall of the housing 2 is provided with a second sliding groove 22, and the bottom of the cabin 3 slides in conjunction with the second sliding groove 22. The second sliding groove 22 is provided with a printing port 23 communicating with the outside of the housing 2. Understandably, by sliding in conjunction with the bottom of the cabin 3 through the second sliding groove 22, the lateral sway of the cabin 3 can be limited, further improving the stability of the cabin 3's sliding. On the other hand, it can limit the extreme position of the cabin 3's sliding. Moreover, the second sliding groove 22 can also make the print head of the ink cartridge 1 closer to the printing port 23, which is beneficial to improving print quality. The bottom wall of the cabin 3 can be partially hollowed out, with the hollowed-out part communicating with the printing port 23. The partial hollowing-out design allows the bottom edge of the cabin 3 to have a support member 38 for supporting the bottom surface of the protrusion 11, which can reduce the material used in the cabin 3.

[0046] Optionally, a dust cover 24 is hinged to the housing 2, and the dust cover 24 is used to open or close the mounting port. Understandably, by enabling the mounting port to be closed or opened via the dust cover 24, it facilitates the protection of the ink cartridge 1 and printhead inside the housing 2. The dust cover 24 can be hinged above the mounting hole, opening and closing along the length of the mounting port. The end of the dust cover 24 opposite to the hinged end can be closed by snap-fit ​​or magnetic attraction.

[0047] Optionally, the side wall of the mounting groove 31 is provided with a first elastic abutment member 33 that elastically abuts against the side of the protrusion 11, and the rear wall of the mounting groove 31 is provided with a second elastic abutment member 34 that elastically abuts against the rear end of the protrusion 11. Understandably, in order to facilitate the insertion of the protrusion 11 of the ink cartridge 1 into the mounting groove 31, the size of the mounting groove 31 will be slightly larger than the size of the protrusion 11 of the ink cartridge 1. By having the first elastic abutment member 33 and the second elastic abutment member 34 elastically abut against the side and rear end of the protrusion 11 of the ink cartridge 1 in a one-to-one correspondence, the gap between the ink cartridge 1 and the mounting groove 31 can be eliminated, thereby ensuring the positional accuracy of the ink cartridge 1 and facilitating the contact between the metal PAD 13 and the PCB spring pin 27. The first elastic abutment 33 and the second elastic abutment 34 can be integrally formed on the cockpit 3. Both protrude into the mounting groove 31 and are arc-shaped. The first elastic abutment 33 can be provided only on one side wall of the cockpit 3, and there can be two of them. The second elastic abutment 34 can be one.

[0048] Optionally, the front wall of the mounting slot 31 is provided with a first clearance notch 35 to allow the metal PAD 13 of the ink cartridge 1 to contact the PCB spring pin 27. Understandably, the first clearance notch 35 provides clearance space for the metal PAD 13, facilitating contact between the metal PAD 13 and the PCB spring pin 27. The higher positions on both sides of the first clearance notch 35 ensure the reliability of the mounting chamber 3 in securing the protrusion 11 of the ink cartridge 1. The rear wall of the mounting slot 31 is provided with a second clearance notch 36, allowing the protrusion 11 of the ink cartridge 1 to be fully embedded into the mounting slot 31. Simultaneously, the higher positions on both sides of the second clearance notch 36 ensure the reliability of the mounting chamber 3 in securing the protrusion 11 of the ink cartridge 1.

[0049] Optionally, a third sliding groove 251 is provided on the side wall of the housing 2, and a second slider 37 adapted to the third sliding groove 251 is provided on the side wall of the mounting groove 31. An elastic element 252 is provided in the sliding groove to give the slide a spring-like restoring force for sliding towards the mounting opening. Understandably, the cooperation between the third sliding groove 251 and the second slider 37 can further improve the stability of the cabin 3's sliding. The elastic element 252 in the sliding groove can provide a spring-like restoring force for the cabin 3, improving the operator's feel when pushing the ink cartridge 1 during installation. At the same time, it provides a spring-like restoring force for the buckle 42 after it is engaged with the slot 12, keeping the buckle 42 and the slot 12 in a locked state. When removing the ink cartridge 1, it can also return the ink cartridge 1 to the mounting opening position for easy removal. The third sliding groove 251 can be in a near-circular shape, and the elastic element 252 can be a spring.

[0050] Furthermore, the housing 2 includes a mounting block 25, which is detachably mounted on the inner wall of the housing 2. The mounting block 25 has a third groove 251. Understandably, the detachable mounting block 25 avoids integrally molding the third groove 251 onto the housing 2, thus reducing manufacturing costs. Simultaneously, it facilitates the pre-installation of the elastic element 252 within the third groove 251 of the mounting block 25, reducing the overall difficulty of nozzle assembly and improving assembly efficiency. The mounting block 25 can be fixed to the inner wall of the housing 2 with screws. One end of the third groove 251 is closed, and the other end is open, facilitating contact between one end of the elastic element 252 and the housing 2.

[0051] Optionally, the housing 2 also includes a guide 26, which extends obliquely from the upper side of the mounting opening toward the mounting groove 31 to guide the protrusion 11 of the ink cartridge 1 and embed it into the mounting groove 31. Understandably, by using the guide 26, when the ink cartridge 1 is installed, it is inserted through the mounting opening, and the guide 26 abuts against the top of the ink cartridge 1 and gradually guides the ink cartridge 1 to move obliquely downwards and forwards, thereby embedding the protrusion 11 of the ink cartridge 1 into the mounting groove 31, improving the installation efficiency of the ink cartridge 1. Simultaneously, the guide 26 also supports the inner wall of the housing 2, which helps to improve the strength of the housing 2. The top of the housing 2 may also be provided with a communication interface 5.

[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A nozzle, characterized in that, include: Ink cartridge, the top of which has a slot; A housing, wherein the housing is provided with an installation port communicating with the interior of the housing; The cockpit is provided with a mounting groove. The cockpit is slidably installed in the housing. The cockpit is slidably disposed between the mounting port and the PCB spring pin. The cockpit has an elastic restoring force that slides toward the mounting port. The protrusion of the ink cartridge can be inserted into the mounting groove from the mounting port. A locking assembly includes a pressing rod and a latch adapted to the slot. The latch is oscillatingly mounted within the housing and has an elastic restoring force toward the slot. When the ink cartridge is pushed, the cabin guides the ink cartridge to slide toward the PCB spring pin. The metal PAD of the ink cartridge contacts the PCB spring pin, and the latch engages with the slot. The pressing rod is movably inserted through the housing, with its pressing end located outside the housing. When the pressing rod is pressed, it causes the latch to oscillate and disengage from the slot, and the cabin returns the ink cartridge to the mounting port.

2. The showerhead of claim 1, wherein The two side walls of the mounting groove are slidably connected to the two side walls of the housing.

3. The showerhead of claim 2, wherein, The housing has a first sliding groove on each of its two side walls, and the mounting groove has a first slider on each of its two side walls that is adapted to the first sliding groove.

4. The showerhead of claim 1 or 2, wherein The bottom wall of the housing is provided with a second sliding groove, and the bottom of the cabin slides in conjunction with the second sliding groove. The second sliding groove is provided with a printing port that communicates with the outside of the housing.

5. The showerhead of claim 1, wherein A dust cover is hinged to the housing, and the dust cover is used to open or close the mounting port.

6. The showerhead of claim 1, wherein The side wall of the mounting groove is provided with a first elastic abutment member that elastically abuts against the side of the protrusion, and the rear wall of the mounting groove is provided with a second elastic abutment member that elastically abuts against the rear end of the protrusion.

7. The showerhead of claim 1, wherein The front wall of the mounting slot is provided with a first clearance notch to allow the metal PAD of the ink cartridge to contact the PCB spring pin.

8. The showerhead of claim 1, wherein The side wall of the housing is provided with a third sliding groove, and the side wall of the mounting groove is provided with a second slider that is adapted to the third sliding groove. An elastic element is provided in the sliding groove so that the cabin has an elastic restoring force that slides toward the mounting port.

9. The showerhead of claim 8, wherein, The housing includes a mounting block, which is detachably disposed on the inner sidewall of the housing, and the mounting block is provided with the third sliding groove.

10. The showerhead of claim 1, wherein The housing is also provided with a guide member that extends obliquely from the upper side of the mounting opening toward the mounting groove to guide the protrusion of the ink cartridge and embed it into the mounting groove.

Images